#header {
  position: fixed;
  top: 0;
  background: #fff;
  z-index: 100;
}

#content {
  position: absolute;
  width: 100%;
  top: 1.180555rem;
  padding-bottom: 0.1rem;
}

.item {
  margin: 0.32rem auto;
  width: 100%;
  height: 4rem;
  overflow: hidden;
}

.item-pic {
  width: 100%;
  height: 4rem;
}